mate.mate-themes: 3.22.15 -> 3.22.16

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/mate-themes/versions.

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 3.22.16 with grep in /nix/store/vjm6m5yyzsrwv51iryqq326w3829dx2c-mate-themes-3.22.16
- directory tree listing: https://gist.github.com/d3a254df8c888718ac16edea0d4dce1d

pkgs/desktops/mate/mate-themes/default.nix

@@ -3,11 +3,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-themes-${version}";
-  version = "3.22.15";
+  version = "3.22.16";
 
   src = fetchurl {
     url = "http://pub.mate-desktop.org/releases/themes/${mate.getRelease version}/${name}.tar.xz";
-    sha256 = "0cmlbj6vlkavdirc5xnsgwmy0m11bj9yrbv1dkq46n1s23rvv6wg";
+    sha256 = "1k8qp2arjv4vj8kyjhjgyj5h46jy0darlfh48l5h25623z1firdj";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];